Car-coupling.



- No. 781,126. h V PATENTED JAN. 31, 1905.

- P. BROWN.

. OAR GOUPLING.

IIIIIIIIIIIIIIIII EB. 21.1902.

' I 2 S H B n I T S a H B B T 1- N0.781,1 2 6.1 PATENTBD JAN. 81 1905.

' I P. BROWN.

GAR COUPLING.

.LAPPLIOA TION IILED FEB. 21,1902.

2 SHEETS-SHEET 2.

wa ii 7-0 I us I 1/1 of the United States ofAmerica, and a resident"Patented January 31, 1905.

PATENT OFFICE.

PERRY BROWN, OF WILMINGTON, DELAWARE.

CAR-COUPLING- SPEGIFICATION forming part of Letters Patent N0. 781,126,dated. January 31, 1905.

i I Application filed February Zl, l902. Serial No. 95,100.

To all whom it may concern:

Be it known that I, PERRY BROWN, a'citizen of Wilmington, in the countyof Newcastle and State of Delaware, have invented certain new and usefulImprovements in Car-Couplings. of which the following is aspecification.

This invention relates to an improvement in that class of car-couplingsknown as. twinnot be liable to the tendency of'creeping uption.

.rior construction.

ward, which is common in couplings now in use. I V

With these objects in view my invention consists in the peculiarconstruction, arrangement, and combination of parts hereinafter moreparticularly described and then definitely pointed out by the claims atthe end hereof.

In the accompanying drawings, which represent what I now consider thepreferable emquite anumber of v bodiment of my invention, Figure 1 is anend elevation with the knuckle removed and with parts broken away inorder to show the inte- Fig. 2 is a horizontal see- Fig. 3 is a verticallongitudinal sec- Fig. 4 is a cross-section through the line a a of Fig.3. Fig. 5 is a detail perspective of the device for holding thelocking-pin in an elevated position. Fig. 6 is a sectional detail of thelocking-pin and a portion of the coupling-head for receiving it.

Referring now to the details of the drawings by numerals, 1 represents acouplinghead which may be of any desired construction and in which ispivoted the usual coupling-knuckle 2, which swings on the ordinarypivotal pin 3,, as in many forms now in use. The tail 4; of thiscoupling-knuckle swings tion.

inthe interior of the coupling-head and is lockedtherein byv means ofthe vertically-operated locking-pin 5, Which'fits within a recess 6 inthe center of said coupling-head 1.

The knuckle 2 is swung in its uncoupled positionwhen the coupling-pin 5is raised by means of a spring7, (shown particularly in Fig. 1, wherethe knuckle is removed in order that the spring may be more clearlyshown.) The spring is coiled around the pivot 8 (shown in dotted linesin Fig. 3) and has onev member, 9, pressing againstthe outer wall '10 ofthe coupling-head, and its other end, 11, presses against the tail ofthe knuckle, as shown in Fig. 2f Idesire to call particular attention tothe location of this spring, for the reason that when it is located intheupper part of the coupling it is not as likely to becomeinoperativeas it would were it coupled in the lower part of thecoupling, where dirt and moisture are likelyto collect and in winter 4:be liable to freeze. U 1

The locking-pin, which has been mentioned as fitting within a recess 6in the couplinghead, consists of two main parts 5 and 7 the main part 5being hollow, as shown, and the part 7 fitting within said hollow. Bothparts have slots or recesses-8 and 9 therein, which coincide when theparts are in the position shown in Fig. 6. A pin 10 passes through themain part 5 and through a slot 11 in the part 7, and this pin supports adog 12. The

construction is such that when the parts are in the position shown inFig. 6the dog rests in a'substantially horizontal position, and the pin5 is therefore capable of movement only until the dog 12 strikes thewall 13 of the recess 6. To raise the locking-pin 5, the part 7 islifted by its link 14, and as said part7 has movement on the pin 10(which is permitted by the slot 11) its lower part 7 acts on the dog 12and swings it on its pin Within the slots 8, and 9, when it is out ofthe path IOO cars may be left with the coupling-pins in their raisedpositions and the cars afterward separated, I employ a holding device16. (Shown best in Figs. 3 and This holding device is nothing more thana lever journaled on the trunnions l7 and so proportioned that its upperend 18 is heavier than its tail 19, and therefore the holding devicenormally falls in a forward position. It therefore follows that if thelocking-pin 5 is raised to its highest position,

as shown in Fig. 1, the upper end 18 of the holding device will fallforward under the notch 20 in the locking-pin, and thus prevent saidlocking-pin from returning to its lowest position. The cars may now beleft and the attendants may go forward to another car and move its pinin a similar position, so that all that is necessary to do is to drawthe forward cars away, the raised position of the couplingpinspermitting the knuckles to swing open. When said knuckle 2 is swungopen, the tail of the knuckle swings against the upper end of theholding device and pushes it rearwardly, and the coupling-pin now restson the tail 4 of the knuckle, as shown in Fig. 3. In this position thecoupling is all ready to be coupled with another car just as though theholding device were not used. The tail 19 forms a handle by which theupper end of the holding device may be moved, as it is sometimesdesirable to permit the pin to drop again without having uncoupled thecars. To accomplish this purpose when the parts are in the positionshown in Fig. 1, all that is necessary to do is to move the tail 19, andthe upper end 18 is moved out of the path of the locking-pin, and thelatter therefore falls, again locking the coupler closed. It will beobvious that my device has a certain measure of utility if the tail 19be omitted, as the upper end 18 is automatic to the extent of droppingunder the locking-pin when said pin is raised and of being shoved out ofthe way by the tail of the knuckle when the latter is open.

It will be seen from the foregoing and the accompanying drawings that lhave invented a very simple form of holding device for supporting thepin in the upper position and that it consists of nothing more than asimple lever properlypivoted in the couplinghead. It can be made of onepiece, if desired,

and can therefore be made of a malleable casting. I should have statedthat the upper end 18 is preferably formed out of the plane of the lowerpart, as shown best in Fig. 4-.

\Vhat I claim as new is- 1. In a car-coupling, the combination of aknuckle and its locking-pin, of a holding device for supporting the saidpin in an unlocked position, comprising an arm arranged to fall under aportion of said pin when the latter is raised, said holding device beinglocated to the rear of said knuckle and lockingpin, and having a portionprojecting through the shell of the coupler whereby the holding devicemay be operated, substantially as described.

2. In a car-coupling, the combination of a knuckle and its pin, of aholding device comprising a single member arranged to project in thepath of the locking-pin and holding the same in a raised position, saidlocking device being located at the rear of said knuckle and locking-pinand projecting through an opening running longitudinally of saidcoupling and affording a means by which the holding device may beoperated, substantially as described.

3. In acar-coupling, alocking-pin comprising two main parts, and a dogpivotally supported with relation thereto, the pivotal pin for said dogalso connecting said two main parts together, substantially asdescribed.

4. In a car-coupling, a locking-pin comprising two main parts, one ofwhich moves with relation to the other, a pin for securing said partstogether, and a dog pivoted on the said pin, substantially as described.

5. In a car-coupling, a locking-pin comprising two main parts securedtogether by a pin, one of said parts having a slot through which saidpin passes, thus permitting a mo\"ement of one of said parts withrelation to the other, and a dog pivoted on said pin, substantially asdescribed.

Signed by me at \Vashington, District of Columbia, this 13th day of lebruary, 1902.

PE Eli-1' B ROW N.

\Vitnesses:

G190. E. FRECII, Tn'os. E. Ronrnrrson.

